Update README.md

README.md

@@ -131,7 +131,12 @@ generation_config = dict(
 )
 
 question = "请详细描述图片"
-response = model.chat(tokenizer, pixel_values, question, generation_config)
+response, history = model.chat(tokenizer, pixel_values, question, generation_config, history=None)
+print(question, response)
+
+question = "请根据图片写一首诗"
+response, history = model.chat(tokenizer, pixel_values, question, generation_config, history=history)
+print(question, response)
 ```